TY - JOUR
T1 - Measurement of e+e−→ pK−Λ ¯ + c. c. cross sections between 4.009 GeV and 4.951 GeV
AU - BESIII Collaboration
AU - Ablikim, M.
AU - Achasov, M. N.
AU - Kalantar-Nayestanaki, N.
AU - Kappert, R.
AU - Kavatsyuk, M.
AU - Messchendorp, J.
AU - Rodin, V.
PY - 2023/12
Y1 - 2023/12
N2 - Using e + e − collision datasets corresponding to a total integrated luminosity of 21.7 fb−1 collected with the BESIII detector at the BEPCII collider at center-of-mass energies ranging from 4.009 GeV to 4.951 GeV, the energy-dependent cross sections of e+e−→ pK−Λ ¯ + c. c. are measured for the first time. By fitting these energy-dependent cross sections, we search for the excited ψ states ψ(4160) and ψ(4415), and the vector charmonium-like states ψ(4230), ψ(4360), and ψ(4660). No evidence for these is observed and the upper limits on the branching fractions of these states decaying into pK−Λ ¯ + c. c. are set at the 90% confidence level. [Figure not available: see fulltext.]. © 2023, The Author(s).
AB - Using e + e − collision datasets corresponding to a total integrated luminosity of 21.7 fb−1 collected with the BESIII detector at the BEPCII collider at center-of-mass energies ranging from 4.009 GeV to 4.951 GeV, the energy-dependent cross sections of e+e−→ pK−Λ ¯ + c. c. are measured for the first time. By fitting these energy-dependent cross sections, we search for the excited ψ states ψ(4160) and ψ(4415), and the vector charmonium-like states ψ(4230), ψ(4360), and ψ(4660). No evidence for these is observed and the upper limits on the branching fractions of these states decaying into pK−Λ ¯ + c. c. are set at the 90% confidence level. [Figure not available: see fulltext.]. © 2023, The Author(s).
U2 - 10.1007/JHEP12(2023)027
DO - 10.1007/JHEP12(2023)027
M3 - Article
SN - 1126-6708
VL - 2023
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 12
M1 - 27
ER -